chore(gradle): bump pac4j from 5.7.9 to 6.5.4

Bumps `pac4j` from 5.7.9 to 6.5.4.

Updates `org.pac4j:pac4j-http` from 5.7.9 to 6.5.4
- [Commits](pac4j/pac4j@pac4j-parent-5.7.9...pac4j-parent-6.5.4)

Updates `org.pac4j:pac4j-oidc` from 5.7.9 to 6.5.4
- [Commits](pac4j/pac4j@pac4j-parent-5.7.9...pac4j-parent-6.5.4)

---
updated-dependencies:
- dependency-name: org.pac4j:pac4j-http
  dependency-version: 6.5.4
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: org.pac4j:pac4j-oidc
  dependency-version: 6.5.4
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -76,7 +76,7 @@ lz4 = "1.11.0"
 mindrot = "0.4"
 nidi = "0.18.1"
 oshi = "7.3.2"
-pac4j = "5.7.9"
+pac4j = "6.5.4"
 parquet = "1.17.1"
 picocli = "4.7.7"
 postgresql = "42.7.10"